2019 GMC Acadia Cruise Control Isn't Working

Common Causes of Cruise Control Malfunctions in Your 2019 GMC Acadia and How to Fix Them

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
30% chance it's the
Sensor
0%
25% chance it's the
Control Module
0%
25% chance it's the
Throttle
0%
20% chance it's
Something else
The most common reasons a 2019 GMC Acadia cruise control isn't working are failed control module, sensor or switch issues, or throttle actuation problems.
  • Sensor: A faulty or malfunctioning sensor can lead to incorrect readings, causing issues with engine performance or other systems relying on accurate data.
  • Control Module: A faulty control module can lead to erratic vehicle behavior or failure of various electronic systems due to improper signal processing.
  • Throttle: A faulty throttle body or a defective accelerator pedal position sensor may be causing inconsistent throttle response.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2019 GMC Acadia cruise control isn't working?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

When the vehicle speed sensor fails or the wiring harness prevents signal transmission, the speedometer is the first thing that will stop functioning properly. This can be an intermittent issue where the speedometer only works occasionally, the speedometer may cease all function, or the speedometer may read erratically or incorrectly. Also, the traction control and anti lock brake warning lights specific to each vehicle may be illuminated, depending on the design of those systems. You may notice the vehicle hesitate to accelerate, cruise control will not function properly, and the vehicle may not shift properly through all of the gears.

In the event that a wheel speed sensor fails, the ABS, traction control system (TCS) and manufacturer specific stability control system lights will illuminate, informing the driver that the systems are disabled. The vehicle will be more prone to tire slip, and normal driving patterns may need to be adjusted to correct for the loss of computer control. On older vehicle's, the speedometer can be affected, causing illumination of the check engine light as well.

The cruise control switch can cause complete failure of the cruise control feature, but in a lucky scenario only partial functionality will be lost. This means that the cruise control may come on, but that it will not increase in speed automatically, or the cancel button does not work leading the driver to cancel cruise control with the foot brake. In some vehicles, the cruise control light may illuminate, or a warning message may be displayed due to lack of functionality.

What steps should I take to diagnose the non-functioning cruise control in my 2019 GMC Acadia?

To effectively diagnose the non-functioning cruise control in your 2019 GMC Acadia, begin with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Start by inspecting the cruise control fuse in the fuse box; a blown fuse is an easy fix that can often resolve the issue. Next, examine the cruise control buttons on the steering wheel for any signs of damage or sticking, as these can hinder functionality. If these initial checks do not yield results, proceed to verify the speed sensor, as a malfunctioning sensor can disrupt the cruise control system. Utilizing an OBD-II scanner to scan for error codes can provide valuable insights into any underlying issues. Additionally, ensure that the brake and clutch switches are functioning properly, as faulty switches can prevent the cruise control from engaging. Inspecting the wiring and connections for any damage or looseness is also crucial, as these can affect the system's performance. Finally, if all simpler diagnostics fail, consider testing or replacing the cruise control module, as this component may be the root of the problem. By following this structured diagnostic approach, you can efficiently identify and address the issues affecting your cruise control system.

What are the common problems that could cause the cruise control to stop working in a 2019 GMC Acadia?

When troubleshooting the cruise control system in a 2019 GMC Acadia, it's essential to understand the common problems that may lead to its failure. One of the primary culprits is a faulty brake pedal switch, which is crucial for disengaging the cruise control when the brake is applied. If this switch malfunctions, it can prevent the system from engaging properly. Additionally, issues with the speed sensor can disrupt the cruise control's functionality, as it relies on accurate speed readings to maintain the desired speed. Another potential issue is a blown fuse within the cruise control system; checking and replacing any blown fuses can often resolve the problem. Furthermore, a malfunctioning throttle actuator can hinder the system's ability to maintain speed, while problems with the Electronic Control Module (ECM) can also lead to cruise control failure, as this module oversees various vehicle functions. By systematically addressing these common issues, you can effectively troubleshoot and potentially restore the cruise control functionality in your GMC Acadia.

How urgent is it to address the malfunctioning cruise control in a 2019 GMC Acadia?

Addressing a malfunctioning cruise control in your 2019 GMC Acadia is not just a matter of convenience; it is a critical safety concern that should be prioritized. When cruise control fails, it can lead to unpredictable vehicle behavior, increasing the risk of accidents and unsafe driving conditions. Moreover, neglecting this issue can exacerbate the problem, potentially causing damage to other vehicle systems, which may result in more extensive and costly repairs down the line. By ensuring that your cruise control is functioning properly, you not only enhance your driving comfort and efficiency but also contribute to a safer driving environment for yourself and others on the road. Therefore, it is essential to address any symptoms of malfunction promptly to avoid serious consequences and maintain the integrity of your vehicle.

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